Yossi Azar Amos Fiat Meital Levy N. S. Narayanaswamy An improved algorithm for online coloring of intervals with bandwidth. 18-27 2006 363 Theor. Comput. Sci. 1 http://dx.doi.org/10.1016/j.tcs.2006.06.014 db/journals/tcs/tcs363.html#AzarFLN06